Flame-retardant polymers with glow-wire resistance

Abstract

The invention relates to flame-retardant polymers with glow-wire resistance, which comprise as component A, from 40 to 90% by weight of polymer, as component B, from 0 to 40% by weight of reinforcing material, as component C, from 3 to 15% by weight of red phosphorus, as component D, from 5 to 20% by weight of phosphorus/nitrogen flame retardant, as component E, from 0 to 15% by weight of phenolic resin, and as component F, from 0 to 10% by weight of nanocomposites, the entirety of the components always amounting to 100% by weight.

1 . A flame-retardant polymer with glow-wire resistance, comprising, as component A, from 40 to 90% by weight of a polymer, as component B, from 0 to 40% by weight of a reinforcing material, as component C, from 3 to 15% by weight of a red phosphorus, as component D, from 5 to 20% by weight of a phosphorus/nitrogen flame retardant, as component E, from 0 to 15% by weight of a phenolic resin, and as component F, from 0 to 10% by weight of a nanocomposite, the entirety of the components always amounting to 100% by weight.  
     
     
         2 . The flame-retardant polymer with glow-wire resistance, as claimed in  claim 1 , comprising from 45 to 65% by weight of component A.  
     
     
         3 . The flame-retardant polymer with glow-wire resistance, as claimed in  claim 1  comprising from 50 to 65% by weight of component A.  
     
     
         4 . The flame-retardant polymer with glow-wire resistance, as claimed in  claim 1 , comprising from 25 to 35% by weight of component B.  
     
     
         5 . The flame-retardant polymer with glow-wire resistance, as claimed in  claim 1 , comprising from 5 to 10% by weight of component C.  
     
     
         6 . The flame-retardant polymer with glow-wire resistance, as claimed in  claim 1 , comprising from 7 to 10% by weight of component C.  
     
     
         7 . The flame-retardant polymer with glow-wire resistance, as claimed in  claim 1 , comprising from 5 to 15% by weight of component D.  
     
     
         8 . The flame-retardant polymer with glow-wire resistance, as claimed in  claim 1 , comprising from 5 to 12% by weight of component D.  
     
     
         9 . The flame-retardant polymer with glow-wire resistance, as claimed in  claim 1 , comprising from 1 to 10% by weight of component E.  
     
     
         10 . The flame-retardant polymer with glow-wire resistance, as claimed in  claim 1 , comprising from 5 to 10% by weight of component E.  
     
     
         11 . The flame-retardant polymer with glow-wire resistance, as claimed in  claim 1 , comprising from 1 to 5% by weight of component F.  
     
     
         12 . The flame-retardant polymer with glow-wire resistance, as claimed in  claim 1 , further comprising, as component G, from 0.05 to 10% by weight of an additive.  
     
     
         13 . The flame-retardant polymer with glow-wire resistance, as claimed in  claim 12 , comprising from 0.1 to 5% by weight of component G.  
     
     
         14 . The flame-retardant polymer with glow-wire resistance, as claimed in  claim 1 , wherein the polymer is a polyamide.  
     
     
         15 . The flame-retardant polymer with glow-wire resistance, as claimed in  claim 1 , wherein the polymer is a reinforced polyamide.  
     
     
         16 . The flame-retardant polymer with glow-wire resistance, as claimed in  claim 15 , wherein the reinforced polyamide Is reinforced with glass fibers, mineral fillers or a mixture thereof.  
     
     
         17 . The flame-retardant polymer with glow-wire resistance, as claimed in  claim 1 , wherein the red phosphorus Is stabilized red phosphorus.  
     
     
         18 . The flame-retardant polymer with glow-wire resistance, as claimed in  claim 17 , wherein the stabilized red phosphorus Is stabilized with magnesium, tin, aluminum, silver, or a mixture thereof.  
     
     
         19 . The flame-retardant polymer with glow-wire resistance, as claimed in  claim 1 , wherein the particle size of the red phosphorus is <200 μm.  
     
     
         20 . The flame-retardant polymer with glow-wire resistance, as claimed in  claim 1 , wherein the red phosphorus is in the form of phenolic resin concentrate.  
     
     
         21 . The flame-retardant polymer with glow-wire resistance, as claimed in  claim 1 , wherein the phosphorus-nitrogen flame retardant is the reaction products of melamine with polyphosphoric acid, the reaction products of condensates of melamine with polyphosphoric acid, or a mixture thereof.  
     
     
         22 . The flame-retardant polymer with glow-wire resistance, as claimed in  claim 22 , wherein the reaction products are dimelamine pyrophosphate, melamine polyphosphate, melem polyphosphate, melam polyphosphate, melon polyphosphate mixed polysalts thereof or mixtures thereof.  
     
     
         23 . The flame-retardant polymer with glow-wire resistance, as claimed in  claim 21 , wherein the reaction products are melamine polyphosphate.  
     
     
         24 . The flame-retardant polymer with glow-Wire resistance, as claimed in  claim 1 , Wherein the nanocomposite is selected from the group consisting of organically intercalated phyllosilicates, nanospherical oxides, and carbon nanotubes.  
     
     
         25 . The flame-retardant polymer with glow-wire resistance, as claimed in  claim 24 , wherein the organically intercalated phyllosilicates are materials for which the starting material is a swellable smectite.  
     
     
         26 . The flame-retardant polymer with glow-wire resistance, as claimed in  claim 24 , wherein the phyllosilicates are intercalated with quaternary ammonium compounds, protonated amines, organic phosphonium ions, aminocarboxylic acids or mixtures thereof.  
     
     
         27 . The flame-retardant polymer with glow-wire resistance, as claimed in  claim 15 , wherein the reinforced polyamide is reinforced with glass fibers, glass beads, or mineral reinforcing materials.  
     
     
         28 . The flame-retardant polymer with glow-wire resistance, as claimed in  claim 12 , wherein the additive is selected from the group consisting of stabilizers, processing aids, antidrip agents, dyes, pigments, waxes and mixtures thereof.  
     
     
         29 . The flame-retardant polymer with glow wire resistance as claim in  claim 25 , wherein the swellable smectite is montmorillonite, hectorite, saponite, or beidellite.  
     
     
         30 . A polymeric molding composition comprising the flame-retardant polymer with glow-wire resistance, as claimed in  claim 1.